402201698 has 4 divisors (see below), whose sum is σ = 603302550. Its totient is φ = 201100848.

The previous prime is 402201697. The next prime is 402201707. The reversal of 402201698 is 896102204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 311628409 + 90573289 = 17653^2 + 9517^2 .

It is not an unprimeable number, because it can be changed into a prime (402201697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100550423 + ... + 100550426.

Almost surely, 2^402201698 is an apocalyptic number.

402201698 is a deficient number, since it is larger than the sum of its proper divisors (201100852).

402201698 is a wasteful number, since it uses less digits than its factorization.

402201698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201100851.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 402201698 is about 20054.9669159538. The cubic root of 402201698 is about 738.1556811032.

The spelling of 402201698 in words is "four hundred two million, two hundred one thousand, six hundred ninety-eight".